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PROJECT DESCRIPTION: The present
invention relates to a novel polysilicon material, novel polysilicon
based electronic devices, and the fabrication methods therefore. In
particular, the invention relates to a novel metal induced lateral
crystallization polysilicon (MILC poly-Si) fabrication technique
that may be employed in a wide range of semiconductor devices. After
MILC, re-crystallization is performed at high temperature in an
inert ambient. Significant improvement in material quality results
from the thermal treatment. High temperature re-crystallized MILC
poly-Si can be applied to (i) devices for sensors, and (ii) TFTs for
flat panel displays (FPDs) and 3-dimensional integrated circuits.
Potential Applications: - Most poly-Si-based sensors - Transmissive
flat panel displays (FPDs) on quartz - Other high-temperature
compatible transparent substrate - Non-transmissive displays on
poly-Si - Other high-temperature compatible opaque substrate -
Integrated sensors and display systems on poly-Si substrates -
Examples: resistor, piezo-resistor, thermistor, pressure sensor,
temperature sensor, photodetector, infrared sensor, transistor, ¡K
etc. Advantages over Present Technologies: 1. Realization of
integrated sensor and non-transmissive display systems on
inexpensive bulk poly-Si or other high-temperature compatible
substrates using the significantly improved material and device
quality of re-crystallized MILC poly-Si. 2. Low-cost batch process
3. Better quality poly-Si thin films can be obtained 4. Limits
processing temperature 5. No special requirement on the surface
planarity of the underlying oxide 6. Sensors with higher
sensitivity, lower temperature instability 7. TFTs with improved
electrical properties |
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KEYWORDS: sensor, panel display,
transparent substrate, high-temperature, resistor, thermistor,
photodetector, |